Elfrida Vipont Brown (3 July 1902 – 14 March 1992) was an English writer of children's literature. She was born in Manchester into a family of Quakers. As a children's writer, she initially published under a man's name, Charles Vipont, which was a common marketing device by publishers at the time. She later wrote as Elfrida Vipont, and after her marriage sometimes as E. V. Foulds. She was also a schoolteacher and a prominent Quaker.